Flat-slab pan



R. R. LEFFLEH'. FLAT SLAB PAN. APPLICATION FILED NOV.21. 19:9.

Patented Mar. 21, 1922.

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fiZK/l/KZ" ASSIGNOR TO THE HYDRAULIC PRESSED 01-110, A CORPORATION OFOHIO.

RALPH B. LEFFLER, OF CLEVELANB, OHIO, STEEL COMPANY, OF CLEVELAND,

FLAT-SLAB PAN.

1,410,328. pecifica i n m n Patented Mar. 21, 1922.

Application filed November 21, 1919. Serial No. 339,714.

To all whom it may concern:

Be it known that I, RALPH R. Lnrrnnn, a citizen of the United States,residing at Cleveland, in the county of Guyahoga and State of Ohio, haveinvented a certain new and useful Improvement in Flat-Slab Pans, ofwhich the following is a full, clear, and exact description, referencebeing had to the accompanying drawings.

This invention relates generally to pans employed in the construction ofconcrete buildings and more particularly to what is known as a flat slabpan. The object of the invention is to provide a pan which will besimple in construction, easy to manufactu "e, and exceedingly strong anddurable, thereby reducing the damage due to hard usage to a minimum.Another object of the invention is to provide a flat slab pan which willlend itself readily to various types of supporting devices and whichwill be 1331 ticularly adapted for use in connection with wedge forms ofspacing or filler strips between the pans.

With these various objects in view the in vention consists in the novelfeatures of construction hereinafter fully described and set forth inthe appended claims. In the drawings forn'iing a part of thisspecification Fig. 1 is a perspective view of a fiat slab panconstructed in accordance with my invention; Fig. 2 is a top plan Viewof the same; Fig. 3 is a section on the line 3 of Fig. 2; and Fig. 4 isa section on the line ll: of Fig. 2.

In the practical embodiment of my inention I employ a flat plate ofsheet metal which is pressed to provide the flat top A. and integralsides B which are pressed inwardly towards their lower edges as shown atB and terminate in inwardly extending bottom flanges B Transversechannel strips C are arranged at each end of the pan and at regularends, said transverse strips resting upon the intervals intermediate thebottom flanges and also contacting with the top of the pan therebystrengthening the pan as a whole from end to end. These channel stripscan be connected by welding, riveting or any other suitable method. Aflat slab pan constructed as herein shown can be very easilymanufactured and owing to the configuration of the size and thetransverse brazing it will be exceedingly strong and durable andtherefore will not be damaged to any ap 'ircciable extent oi: the roughusage to which such pans are ordinarily subjected.

Having thus described my invention, what I claim is 1. A slab form pancomprising a top and integral side members, said side members be ingpressed inwardly toward their lower ends and terminating in inwardlyextending flanges.

Q. A slab form pan comprising a top and integral side members, said sidemembers being pressed inwardly toward their lower ends and terminatingin inwardly extending flanges, and a plurality of transverse channelstrips fixedly arranged between the side members.

3. A. flat slab pan comprising a top and in tegral side membersterminating in inwardly extending flanges and a plurality of transversechannel strips arranged between the top, sides and flanges as set forth.

l. A panel for concrete work comprising a sheet metal plate havingopposite edge portions thereof bent at an angle with respect to the mainbody of the plate, at least one of said bent over portions having alongitudinally extending bead or rib member, said head. being locatedadjacent the point of juncture of the main body of the plate and saidbent over portion.

in testimony whereof signature.

I hereunto affix my RALPH R. LEFFLER.

